Tascam 244 Plastic tape head holder the smaller one is about

the smaller one is about half the size and the peg can be removed

or for an extra 20 pounds i can fit new bearings so that will 78 pounds

This is the piece of metal that holds the capstan in and that you should allow a little play when setting it up as the capstan should move about 1mm not be pressed hard against this to allow free movement and settle down when running

but if you are looking to get some playback and copy tapes they will be ok

All SC3621/variant

Tascam 244 Plastic tape head holder the smaller one is aboutThese are surprisingly common cause of failure and I cannot get enough of them They have a spring in which breaks or breaks the plastic, its a common problem In all of the Tascam and Teac units, I do not yet have the Teac part number but will add later The 244 seems less prone to breaking